The optimal sleeping temperature

Sleep deeper and longer

How well we sleep impacts how well we live. What many might not be aware of is the massive impact temperature has on our sleep quality and sleep duration. In particular our deep sleep phases and our REM sleep is impacted by temperature fluctuations, as a result we spend less time in these phases. The result? A lower quality sleep that fails to give us the energy we want and need when we awake.

Studies have shown that around 40% of people mention being too warm or too cold as the most disturbing factor preventing them from enjoying a great sleep. If we become too warm, and can't release that heat fast enough, we start to sweat. Sweating while sleeping is totally normal. We sweat on average one cup every night. However, with the wrong materials it can lead to uncomfortable wetness on our skin

Temperature regulating pajamas

How Dagsmejan helps you to sleep better

Find your ideal match to cater to your personal physiological sleep needs. We have three collections of temperature regulating sleepwear that will keep you at the right degree, all night and every season.

Stress reducing pajamas

Balance sleepwear

Ideal if you get hot and cold at night as it balances out any temperature fluctuations so that you stay longer in the ideal climatic comfort zone.

The Balance Collection features NATTWELL™ fabric. Beechwood fibres are enhanced with a patent technology making it 6x more breathable, 4x better at drawing sweat away from your skin, and 2x softer than cotton. This allows for revolutionary temperature regulation and moisture management, keeping skin temperature 1°C cooler than cotton.

Discover the best moisture wicking pajamas.


cooling summer pajamas

Stay cool sleepwear

The Stay Cool Collection is your perfect sleep companion if you have a tendency to get hot at night and wake up sweating or during those warm summer nights. Featuring NATTCOOL™ fabric, Stay Cool is designed to cool you down through gradual moisture evaporation and keep you dry through exceptional moisture transport, so you can sleep easy without ever overheating.

The basis of NATTCOOL™ fabric is Micro Tencel from Eucalyptus. The natural fibres have been engineered to be 8x more breathable than cotton and releases water vapor 60% better, so you can enjoy cool and smooth sleep comfort. This cooling pajamas will ensure that you keep the best temperature for sleep.


most comfortable merino wool pajamas

Stay warm sleepwear

The Stay Warm Collection is ideal if you have a tendency to feel cold at night or during colder seasons. It features NATTWARM™ fabric—an unique combination of mulesing-free super-fine merino wool and high-tech Tencel from Eucalyptus which is specially engineered to offer super soft, ultra-light and breathable warmth. The results? You stay comfortably warm without ever overheating.

Merino fibers regulate moisture, absorbing 35% of their weight before feeling damp to the touch, while the unique structure of Tencel offers 50% better moisture management than cotton with 4x more breathability and 2x the softness.


Sleep better

Discover Dagsmejan temperature regulating sleepwear

the ideal sleeping temperature

Keeping the ideal sleeping temperature

To enjoy a good night's sleep it's important to help the body release excess heat and moisture. Sleepwear and bedding that help to manage temperature and sweat during the night can help support your body's natural heat regulation. Breathable, temperature regulating sleepwear can make a real difference.

Keep your bedroom cool. The ideal sleeping temperature is below 18°C/ 64°F and make sure that you have the right pajamas and duvet so that you don't get too cold or too warm.

Taking a warm bath before bedtime causes your body temperature to rise and then fall rapidly making you sleepy. A warm bath also stimulates the release of a hormone which makes you feel relaxed and calm.

If you have cold feet, warming them up before going to bed can help you fall asleep faster. You can do this by taking a foot bath or by wearing sleep socks. If our hands and/or feet are too cold our core temperature won't drop, preventing us from falling asleep.

How sleepwear impacts your sleep

How your sleepwear impacts your sleep

We might not be aware of the difference the right, temperature regulating pajamas can impact how well we sleep. 4 factors are in particular important to keep in mind:

Temperature regulationbreathable pajamas help to ensure that excess heat is releases so that we don't overheat and start to sweat. We don't want to become too cold however, as we then start to shiver. 

- Moisture management: if we start to sweat and our fabric gets soaked and damp we easily get cold instead and start to shiver. Moisture wicking pajamas is crucial to ensure that moisture is transported away from the skin at the right speed to allow for evaporative cooling without having a wet fabric.

- Fit and comfort: we move 40 times every night so it's important that our sleepwear moves with us. The most comfortable pajamas should be like a second skin, not restricting us during the night. 

- Super soft touch: our blood flow increase during the sleep meaning that we are more sensitive to touch.

  • ★★★★★

    "So thin and light you hardly know you are wearing them yet snug not sweaty! Particularly like no lumpy waistband to dig in as you turn in your sleep. Happy customer!”

    — Patrick —

  • ★★★★★

    "Best night's sleep. Keeps my body at the perfect temperature. i also love that the top is long, so it doesn't ride up. I will be replacing all my other pajamas now that i have found my perfect match."

    — Diane —

  • ★★★★★

    "Quality product- Material was light and soft to the touch at the same time providing comfort with climate control to your sleep."

    — Steven —

  • ★★★★★

    "Most Comfy Ever. I am picky about sleepwear and these are amazing. I will never wear anything else. So soft and comfy. Temperature regulating pajamas, just perfect."

    — Meredith —